e/Scene stealer

Information
has gloss	eng: A scene stealer is a character in a film or dramatic performance that dominates the audience's attention, often through charisma, humour or powerful acting, thus "stealing the scene" or "stealing the show". The term usually (but not always) applies to a supporting character, such a sidekick, best friend, confidant, villain, etc. Sometimes the term is used for a minor character who has unexpectedly (and perhaps inappropriately) drawn attention away from the star. One of the most famous of these is Mercutio from Romeo and Juliet. Sometimes the term is used pejoratively, and is applied to minor actors with a hammy or self-aggrandizing style.
lexicalization	eng: scene stealer
instance of	c/Counterparts to the protagonist